private SWRLDataObject makeDataObject(final Expr expr) throws URISyntaxException {
if (expr.isVariable()) {
return swrlFactory.createDataVariable(new URI(varNS + expr.getVarName()));
} else if (expr.isConstant()) {
final NodeValue nv = (NodeValue) expr;
OWLDataValue value;
if (nv.isInteger()) value = owlModel.createDataValue(nv.getInteger());
else if (nv.isDouble()) value = owlModel.createDataValue(Double.valueOf(nv.getDouble()));
else if (nv.isFloat()) value = owlModel.createDataValue(Float.valueOf(nv.getFloat()));
else if (nv.isBoolean()) value = owlModel.createDataValue(Boolean.valueOf(nv.getBoolean()));
else if (nv.isString()) value = owlModel.createDataValue(nv.getString());
else if (nv.isDecimal()) value = owlModel.createDataValue(nv.getDecimal());
else if (nv.hasDateTime()) value = owlModel.createDataValue(nv.getDateTime());
else /* if (nv.isLiteral()) */ throw new NotImplementedException();
return swrlFactory.wrapDataValue(value);
} else {
throw new IllegalArgumentException(
"Nested constraint (filter) near " + expr + " can not be transformed to SWRL atom.");
}
}
